Here is the full list of all 22 Katana ZERO achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Kill yourself in an elevator.
Your trap card was activated.
You stopped a suicide. With a murder.
Beat Katana ZERO.
Complete The Dragon's tape.
You killed a suspiciously familiar character on the Quiet Hills set.
In 1962, the Orlons released one of the all-time greatest doo wop hits, Don't Hang Up. Google it. Anyway, you hung up your phone a lot.
Meet your final end in chinatown.
Most people go right. You went left.
Found what the robber left behind.
Didn't wake up Leon.
Fulfilled your secondary goal in the prison.
Found all the hidden keys.
You ruined his fresh track suit.
Poor guy.
This will go well...
Why did you think it was a good idea to give him your Katana anyway?
Jump off the balcony of the penthouse.
Defeat the psychiatrist's final form.
Achieve a total rank of gold or higher in a full speedrun.
Complete a full run in hard mode.
You really liked petting that cat.